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Radiant|Lab Grown|IGI

2.57ct G IF Radiant Lab Grown Diamond

EX • G/IF • IGI LG661408024

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG661408024

Diamond specifications and retailer prices

From $2,262 AUD
$1,589 USD
As of October 31, 2026
Save $14,878 AUD (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $17,140 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant sits in the two to three carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG661408024 or 661408024. Listed at 24 retailers as of October 31, 2026, with prices from $2,262 to $17,140, a $14,878 spread on the same certified stone. Do Amore Diamonds lists it at $17,140. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.57
Carat
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG661408024
Dimensions9.75 × 6.75 × 4.49 mm
L/W Ratio1.44
Culet sizePointed
Top View
9.75 mm6.75 mm2.57 ctG / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG661408024
Side View
Table 65.0%Crown 42.7°Girdle: MediumPavilion 34.9°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $9,114 AUD|Low: $2,393 AUD|High: $9,235 AUD|Avg: $5,485 AUD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 5$2,493 AUD
Retailer 2$2,712 AUD
Retailer 3$2,891 AUD
Retailer 4$2,891 AUD
Retailer 15$3,132 AUD
Retailer 9$3,987 AUD
Retailer 10$4,389 AUD
Retailer 14$4,863 AUD
Retailer 13$5,936 AUD
Retailer 6$5,982 AUD
Retailer 11$6,662 AUD
Retailer 8$7,575 AUD
Retailer 7$7,790 AUD
Retailer 12$8,233 AUD
Retailer 1$9,114 AUD

36 data points across 15 retailers

24 retailers$2,262 AUD to $17,140 AUD

A
Cheapest Retailer
-
$2,262 AUD
$1,589 USD
A
Retailer 2
-
$2,493 AUD
$1,751 USD
View
A
Retailer 3
-
$2,712 AUD
$1,905 USD
View
A
Retailer 4
-
$2,790 AUD
$1,960 USD
View
Final sale: no returns
A
Retailer 5
-
$2,891 AUD
$2,031 USD
View
Retailer 6
-
$2,891 AUD
$2,031 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$2,906 AUD
$2,041 USD
View
A
Retailer 8
-
$3,132 AUD
$2,200 USD
View
B+
Retailer 9
-
$3,987 AUD
£2,205 GBP
View
B+
Retailer 10
-
$4,063 AUD
$2,854 USD
View
B+
Retailer 11
-
$4,389 AUD
£2,427 GBP
View
B+
Retailer 12
-
$4,863 AUD
$3,416 USD
View
Retailer 13
-
$5,008 AUD
$3,518 USD
View
Price last confirmed 9 days ago
Retailer 14
-
$5,936 AUD
$4,170 USD
View
Price last confirmed 11 days ago
B
Retailer 15
-
$5,982 AUD
$4,202 USD
View
B
Retailer 16
-
$6,053 AUD
£3,348 GBP
View
B
Retailer 17
-
$6,662 AUD
$4,680 USD
View
B
Retailer 18
-
$7,575 AUD
View
B
Retailer 19
-
$7,790 AUD
$5,472 USD
View
B
Retailer 20
-
$8,233 AUD
ZAR 93,431 ZAR
View
B
Retailer 21
-
$8,642 AUD
$6,071 USD
View
B
Retailer 22
-
$9,114 AUD
£5,041 GBP
View
B
Retailer 23
-
$11,173 AUD
$7,848 USD
View
Most Expensive
B
Do Amore Diamonds
27-B880BE45E · Oct 31
$17,140 AUD
$12,040 USD
View
23 more retailers have this diamond
Prices start from $2,262 AUDSave up to $14,878 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.57ct Radiant
$2,262 AUD